Grease-trap



I. .HEPPRON.

GREASE TRAP.

(No Model.)

,501. Patented May 8, 1894.

woawlioz ma mmcmn. LITHOGRAFHING COMPANY.

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UNITED STATES PATENT FFICE.

ISAAC HEFFRON, or GALVESTON, TEXAS.

G REAS E-T RA P.

SPECIFICATION forming part of Letters Patent No. 519,501, dated May 8, 1894.

Application filed December 19, 1893' Serial No. 494,095. (No model.)

ton, in the county of Galveston and State of Texas, have invented certain new and useful Improvements in Grease-Traps; and I do doclare the following to be a full, clear, and

exact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same, reference being had to the letters of reference marked on the accompanyingdrawing, which forms a part of this specification.

The-drawing represents a central vertical section of the grease trap apparatus to which I have applied my improvement.

The present invention is an improvement upon Letters Patent for improvements in sewer traps, No. 506,690, granted to me'October17, 1893. v

The object of this invention is to provide a strainer device for sewer traps, and the like, which will prevent any solid ,matter passing therethrough, and at the same time capable of being removed for the purpose of cleansing, repairs or other purposes.

For this purpose my invention consists in the following construction and combination of parts which will be first fully described in detail and the features of novelty contained therein then pointed out and claimed.

In the drawing-A represents the receiving cylinder connected with a'sink or other receptacle for receiving refuse matter bya pipe B.

O is a second cylinder connected thereto near the bottom by a pipe D, forming a communication between the two cylindersA and C. r

E is an intercepting strainer and holding device, removable through the top of cylinder A, whereby the contents thereon maybe I removed.

The second cylinder 0, is connected witha sewer pipe, or othersuitable discharge by a trapped connecting pipe G.

H is a pipe within the second cylinder 0 and forming a continuation of the discharge pipe G. This pipe H is preferably elbow shaped so as to project downwardly into the cylinder.

I represents my improved strainer, which is preferably of the inverted form shownand is remov'ably secured to the lower end of the elbow pipe H so that itrnay be detached from said pipe for the purposeof cleansing it, or for other purposes.

In its improved form my Strainer device flares downwardly, the exterior conformation being that of a truncated cone, the sides and bottom of which are perforated for the purposes of a strainer.

The rod F connecting the strainer E in cylinder A is continued to the bottom of the cylinder where it is connected with an impcrforate flanged disk L fitting snugly therein at the bottom.

The downwardly projecting strainer I may A be provided with lugsJ, and a downwardly projecting removable spanner secured to'the cover of cylinder 0 may be arranged to engage the strainer I for the purpose of detach- I ing and removing the same.

It will be noticed that the space K below up that it does not disturb the sluggish charactor .of the contents by any agitating currents. The cylinder A is cleaned as often as required by simply removing the rod F and its'attached strainer E and disk L.

Any sedimentary matter which may pass through the discharge pipe D into thesecond cylinder 0 is intercepted therein and prevented from being discharged into the sewer by the peculiar arrangement of the strainer I which'is submerged therein at a point midway thereof. This position of the'strainer in the second cylinder is such that thetendency to clog the meshes thereof is prevented as much as possible-owing to its position. The

'heavier extraneous matter received in said cylindersettles at the bottom thereof so as not to be subject in a marked degree to the suction action, while the lighter particles which may seek the surfacelevel pass above the strainer, so that the latter draws from a point least subject ment.

I claim The combination to the intercepted sediof two upright cylinders,

the first being provided with an intercepting too I strainer device or piston normally resting some distance above the bottom, an imperfo rate disk located upon the bottom of said cylinder, a rod connecting the strainer and disk for the purpose of removing the same, a collecting chamber between the strainer and disk, a second cylinder having a discharge outlet near the top, a downwardly projecting strainer located midway of the second cylinder and-connected with the discharge, means as described for detaching and removing said strainer from the second cylinder, a pipe uniting both cylinders at a point some distance above the bottoms thereof, and an inlet at the upper end of the first cylinder.

In testimony whereof I affix my signature in the presence of two witnesses.

ISAAC HEFFRON.

Witnesses:

A. W. SPAIGHT, W. S. GRIFFIN. 

